It won't be as it's gonna be as breathable as the regular version, as this is a summer shoe, no insulation. So you will get cold. It's not waterproofed, nor windproof. I have the regular version. it makes clack clack sound when walking, kinda like sandals. The RC shoes are too narrow for me, just like Five Ten, sizing is the same. I got 11cm wide and 27.5 long feet, and 44 is still too narrow, but any longer and the shoe will be way too long, 44 is already too long as the toe guard doesn't cover it properly...